Drone dispensing device

ABSTRACT

A dispensing device for connection to a drone is provided. The dispensing device has an outer housing and an inner housing interior of the outer housing. The inner housing has an inner cavity having an entrance opening and an opposing exhaust opening. The area between the outer housing and the inner housing defines an outer cavity adapted to hold a material. The dispensing device also has a fluid access opening to provide fluid access between outer cavity and the inner cavity to allow material in the outer cavity to be transferred to the inner cavity and mixed with air to create an air and material mixture. An air accelerator is provided adjacent the inner cavity to accelerate the air and material mixture out of the dispensing device.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional PatentApplication No. 62/446,552, filed Jan. 16, 2017, which is expresslyincorporated herein by reference and made a part hereof.

FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not Applicable.

TECHNICAL FIELD

The present disclosure relates generally to dispensing devices, and morespecifically to an overhead drone dispensing device for dispensing acontrolled volume of a material from the dispensing device.

BACKGROUND

Dispensing devices are well known in the art. While such dispensingdevices according to the prior art provide a number of advantages, theynevertheless have certain limitations. The present invention seeks toovercome certain of these limitations and other drawbacks of the priorart, and to provide new features not heretofore available. A fulldiscussion of the features and advantages of the present invention isdeferred to the following detailed description, which proceeds withreference to the accompanying drawings.

SUMMARY

According to one embodiment, the disclosed subject technology relates toa dispensing device for dispensing a material in an air/material mixturetoward the ground from a dispenser located a distance above the ground.

The disclosed subject technology further relates to a dispensing devicefor connection to a drone, comprising: an outer housing; an innerhousing interior of the outer housing, the inner housing having an innercavity, the inner cavity having an entrance opening at a first end ofthe inner cavity and an exhaust opening at a second end of the innercavity; an outer cavity between the outer housing and the inner housing,the outer cavity adapted to hold a material; an upper cap closing afirst end of the outer cavity; a lower cap closing a second end of theouter cavity; an aperture in the inner housing proximal a bottom of theouter housing to provide fluid access between outer cavity and the innercavity to allow material in the outer cavity to be transferred to theinner cavity and mixed with air to create an air and material mixture; aclosure member adjacent the aperture to open and close the aperture asdesired to dispense material from the outer cavity into the inner cavityfor mixing with air in the inner cavity; a controller for controllingmovement of the closure member between a first position where theaperture is closed, and a second position where the aperture is open;and, a fan adjacent the exhaust opening to the inner cavity toaccelerate the air and material mixture out of the dispensing device.

The disclosed subject technology further relates to a dispensing devicefor connection to a drone, comprising: an outer housing; an innerhousing interior of the outer housing, the inner housing having an innercavity having an entrance opening at a first end of the inner cavity andan exhaust opening at a second end of the inner cavity; an outer cavitybetween the outer housing and the inner housing, the outer cavityadapted to hold a material; an upper cap closing a first end of theouter cavity; a lower cap closing a second end of the outer cavity; afluid access opening to provide fluid access between outer cavity andthe inner cavity to allow material in the outer cavity to be transferredto the inner cavity and mixed with air to create an air and materialmixture; and, an air accelerator adjacent the inner cavity to acceleratethe air and material mixture out of the dispensing device.

The disclosed subject technology further relates to a dispensing devicefor connection to a drone, comprising: an outer housing connected to adrone; an inner housing interior of the outer housing, the inner housinghaving an inner cavity having an entrance opening at a first end of theinner cavity and an exhaust opening at a second end of the inner cavity;an outer cavity between the outer housing and the inner housing, theouter cavity adapted to hold a material; an upper cap closing a firstend of the outer cavity; a lower cap closing a second end of the outercavity; an fluid access opening to provide fluid access between outercavity and the inner cavity to allow material in the outer cavity to betransferred to the inner cavity; and, an air accelerator adjacent theinner cavity to accelerate the air and material mixture out of thedispensing device.

The disclosed subject technology further relates to a dispensing devicewherein the closure member comprises a seal inside the inner cavity, theseal rotating between the first position and the second position.

The disclosed subject technology further relates to a dispensing devicehaving a driver electrically connected to the controller, the drivermoving the closure member between the first position and the secondposition. In one embodiment, the driver comprises a gear connected tothe closure member to rotate the closure member between the firstposition and the second position. In an alternate embodiment, the drivercomprises a motor, such as a servo motor, having a gear to driverotation of the closure member.

The disclosed subject technology further relates to a dispensing devicewherein the controller comprises a receiver for receiving a radiofrequency signal from a remote device.

The disclosed subject technology further relates to a dispensing devicehaving a cover over the entrance opening of the inner housing, the coverhaving a plurality of apertures there through.

The disclosed subject technology further relates to a dispensing devicehaving a funnel below a surface of the cover to direct air into theentrance opening of the inner housing.

The disclosed subject technology further relates to a dispensing devicehaving a connector to secure the dispensing device to the drone.

The disclosed subject technology further relates to a dispensing devicewherein the air accelerator is a fan adjacent the exhaust opening to theinner cavity. In an alternate embodiment, the air accelerator is a fanadjacent the entrance opening to the inner cavity.

The disclosed subject technology further relates to a dispensing devicehaving a closure member adjacent the fluid access opening to open andclose the fluid access opening as desired to dispense material from theouter cavity into the inner cavity for mixing with air in the innercavity;

The disclosed subject technology further relates to a dispensing devicewherein the outer housing is connected to the drone adjacent a side ofthe drone. In another embodiment the outer housing is connected to thedrone adjacent a bottom of the drone.

The disclosed subject technology further relates to a dispensing devicewherein the air accelerator accelerates the air and material mixture adistance beyond a turbulence area of the drone.

It is understood that other embodiments and configurations of thesubject technology will become readily apparent to those skilled in theart from the following detailed description, wherein variousconfigurations of the subject technology are shown and described by wayof illustration. As will be realized, the subject technology is capableof other and different configurations and its several details arecapable of modification in various other respects, all without departingfrom the scope of the subject technology. Accordingly, the drawings anddetailed description are to be regarded as illustrative in nature andnot as restrictive.

BRIEF DESCRIPTION OF THE DRAWINGS

To understand the present disclosure, it will now be described by way ofexample, with reference to the accompanying drawings in whichembodiments of the disclosures are illustrated and, together with thedescriptions below, serve to explain the principles of the disclosure.

FIG. 1 is a perspective view of a dispensing device being carried by adrone according to one embodiment.

FIG. 2 is a perspective view of a dispensing device being carried by adrone according to another embodiment.

FIG. 3 is a front perspective view of a dispensing device according toone embodiment.

FIG. 4 is an exploded perspective view of the dispensing device of FIG.3.

FIG. 5 is a cross-sectional view of the venturi flow meter in thedispensing device of FIG. 3.

FIG. 6 is a front perspective view of a dispensing device according toanother embodiment.

FIG. 7 is a cross-sectional view of the venturi flow meter in theembodiment of FIG. 6.

FIG. 8 is a cross-sectional view of another venturi flow meter that maybe used in a dispensing device, including in the embodiment of FIG. 6.

FIG. 9 is a front perspective view of a dispensing device according toanother embodiment.

FIG. 10 is a front top perspective view of a drone dispensing deviceaccording to another embodiment.

FIG. 11 is a front bottom perspective view of the drone dispensingdevice of FIG. 10.

FIG. 12 is an exploded perspective view of the drone dispensing deviceof FIG. 10.

FIG. 13 is a partial bottom perspective view of the drive mechanism forthe drone dispensing device of FIG. 10.

FIG. 14 is a cross-sectional view of the drone dispensing device of FIG.10 with the dispensing window closed.

FIG. 15 is a cross-sectional view of the drone dispensing device of FIG.10 with the dispensing window open.

DETAILED DESCRIPTION

While the dispensing device discussed herein is susceptible ofembodiments in many different forms, there is shown in the drawings, andwill herein be described in detail, preferred embodiments with theunderstanding that the present description is to be considered as anexemplification of the principles of the dispensing device and is notintended to limit the broad aspects of the disclosure to the embodimentsillustrated.

Referring now to the figures, and initially to FIGS. 1 and 2, there isshown a dispensing device 10, preferably for connection to a drone 11 orother flying apparatus. In one embodiment the dispensing device 10 isprovided for dispensing a powder or other material contained in thedispensing device 10. Preferably, the dispensing device is utilized todispense material toward the ground from an above-ground elevation, suchas for dispensing a pepper spray powder from the dispensing device 10connected to the drone 11 or other flying apparatus toward a crowd belowthe flying apparatus. In the embodiment of FIG. 1, the dispensing device10 is connected to the drone 11 adjacent a side of the drone 11. In theembodiment of FIG. 2, the dispensing device 10 is connected to the drone11 adjacent a bottom of the drone 11.

In one embodiment, as shown in FIGS. 3 and 4, the dispensing device 10comprises an outer housing 12, an inner housing 14 within the outerhousing 12, a mixing device 16 adjacent the end of the inner housing 14,and an outlet or an exhaust 18 provided at an end of the mixing device16. In alternate embodiments, the dispensing device 10 may also includea top cap 20 closing a first end 22 of the outer housing 12, a bottomcap 24 closing a second end 26 of the outer housing 12, a funnel 28 at afirst end 30 of the inner housing 14, and an air accelerating device 32at an opening 34 to the funnel 28. In one embodiment, such as shown inFIGS. 3-5, the mixing device 16 is also the bottom cap 24. In analternate embodiment, such as shown in FIG. 6, a separate bottom cap 24is provided and the mixing device 16 is in-line with the inner housing14 and spaced between the bottom cap 24 and the top cap 20, preferablycloser to the bottom cap 24. Similarly, in one embodiment, such as shownin FIGS. 3-5, the mixing device 16 is integral with and includes theexhaust opening 18, whereas in the embodiment of FIG. 6, the mixingdevice 16 is separate from the exhaust opening 18.

As shown in FIGS. 3 and 6, the inner housing 14 is nested within theouter housing 12, and an outer cavity 38 is created between an interiorwall 40 of the outer housing 12 and the exterior wall 42 of the innerhousing 14. A top of the outer cavity 38 is defined by the top cap 20 atone end, and a bottom of the outer cavity 38 is defined by the bottomcap 24 at the other end. However, in the embodiment of FIG. 3, where themixing device 16 operates as the bottom cap 24, the mixing device 16will therefore operate as the bottom of the outer cavity 38 in thatembodiment. The outer cavity 38 retains a material that is to bedispensed from the dispensing device 10. The material is preferably apowder, however alternate materials may be utilized. When the dispensingdevice 10 is assembled, material may be inserted into the outer cavity38 through an opening 44 in the top cap 20. A stopper or other cap (notshown) may be utilized to close the opening 44. Alternately, afterfilling the outer cavity 38 the opening 44 may be permanently sealed.Alternately, the outer cavity 38 may be filled and then the top cap 20assembled thereto.

To dispense material from the dispensing device 10, air or some othergas is accelerated through an inner cavity 46 of the inner housing 14and further through the inner cavity 48 of the mixing device 16. In apreferred embodiment, the inner cavity 48 of the mixing device 16, asbest shown in FIGS. 7 and 8, has a venturi shape and operates as aventuri 50, which by definition contains a constriction or smaller crosssection. In fluid dynamics, a fluid's velocity (here, the gas passingthrough the inner cavity 48 of the mixing device 16) must increase as itpasses through a constriction in accord with the principle of masscontinuity, while its static pressure must decrease in accord with theprinciple of conservation of mechanical energy. Thus any gain in kineticenergy a fluid may accrue due to its increased velocity through aconstriction is balanced by a drop in pressure. By measuring the changein pressure, the flow rate of the fluid at the exit of the venturi 50can be determined. Further, as explained below, the venturi portion 50of the mixing device 16 can also be used to mix the gas passing throughthe venturi 50 with the material contained in the outer cavity 38 of thedispensing device 10.

With reference to FIGS. 5, 7 and 8, the mixing device 16 has a series ofinlets 52 that connect the exterior of the mixing device 16 with theinterior cavity 48 of the mixing device 16. Accordingly, as shown inFIGS. 3 and 6, the inlets 52 fluidly connect the outer cavity 38 of thedispensing device 10 with the interior cavity 46, 48 of the innerhousing 14 and mixing device 16. In different embodiments the inlets 52have a different shape. For example, in the embodiment of FIG. 8, theinlets 52 comprise a straight tubular form that extends angularlydownward from the opening 54 of the inlet 52 at the exterior of themixing device 16 to the exit 56 of the inlet 52 in the interior cavity48 of the mixing device. In the embodiment of FIG. 7, the inlets 52 alsocomprise a tubular shape, but their tubular shape has a raised portion58 between the opening 54 of the inlet 52 and the exit 56 of the inlet52. In one embodiment, the raised portion 58 operates to assist inpreventing material within the cavity 38 of the dispensing device 10from being dispensed prematurely. In the embodiment of the mixing device16 shown in FIG. 5, the inlet 52 similarly has a raised portion 58, butthe opening 54 leads to a vertical tube 60 that has been found to assistin the flow of material from the interior cavity 38 of the dispensingdevice 10.

Referring to FIG. 3, in a preferred embodiment the dispensing device 10utilizes an air accelerating device 32, such as a high velocity airsupply 32, which could be a fan, a turbo device, a source of compressedgas, etc. The air accelerating device 32 provides a flow of air throughthe interior cavity 46 of the inner tube 14 and further through theinner cavity 48 of the mixing device 16 (i.e., through the venturiportion 50 of the mixing device 16). As the gas passes through the innercavity 48 of the mixing device 16, material from the cavity 38 in thedispensing device 10 is sucked via a vacuum created in the venturi 50through the inlets 52 because of the change in pressure in the venturi50, as well as via the air flow from the air supply device 32, and amixture of gas and material (e.g., powder) will be created at the exitof the venturi 50 to be dispelled at an increased velocity from theexhaust opening 18 of the dispensing device 10. In one embodiment, theair accelerating device 32 is connected to a funnel 28 to direct the airinto the interior cavity 46 of the inner tube 14.

Accordingly, the dispensing device 10 operates to exhaust a mixture ofgas (i.e., air) and material (i.e., such as a powder present in theouter cavity 38) at a known and controllable flow rate, which ispreferably an increased speed. The rate of mixing of the material withthe gas is controlled by the flow of the gas through the venturi 50. Thefaster the flow of gas through the venturi 50 the greater the mix ratio.

An alternate embodiment is shown in FIG. 9. In that embodiment noventuri 50 is utilized. Instead gas that flows through the interiorcavity 46 of the inner housing 14 via the air acceleration device 32.The inner housing 14 has apertures 62 in it to allow the material in theouter cavity 38 of the dispensing device 10 to flow into the interiorcavity 46 of the inner housing 14 and become mixed with the gas flowingthrough the inner housing 14. A moveable and controllable stopper 64 isprovided in the inner housing 14 to controllably open and close theapertures 62 when dispensing of the material is desired and not desired.Wires or other means may be used to controllably move the inner stopper64.

In a preferred embodiment, the material mixed with the accelerated gasthat is dispelled out of the exhaust member 18 is dispelledapproximately 15 feet from the dispensing device 10. When the dispensingdevice 10 is connected to a flying apparatus, such as a drone, it ispreferred to exhaust the gas/material mixture a distance away from thedispensing device such that the gas/material mixture extends away fromthe turbulence of the flying apparatus caused by the rotary blades ofthe flying device. However, once the gas/material mixture is forced outof the zone of turbulence, the rotor wash of the rotary blades helps tofurther accelerate the gas/material mixture toward the ground.

In an alternate embodiment, the mixture in the cavity 38 of thedispensing device is merely dropped from the dispensing device due togravity.

An alternate embodiment of the dispensing device 10 is shown in FIGS. 10through 15. In this embodiment, the dispensing device 10 utilizes an airacceleration device 32 that is provided adjacent the exhaust opening 18to the inner cavity 46 to accelerate the air and material mixture out ofthe dispensing device 10. In one embodiment the air acceleration device32 is an electro-ducted fan or EDF. Referring to FIG. 12, the dispensingdevice 10 may comprise an outer housing 12 and an inner housing 14interior of the outer housing 12. The inner housing 14 has an innercavity 46, which may also operate as the inner cavity 48 of the mixingdevice 16. The inner cavity 46 has an entrance opening 31 at a first end30 of the inner cavity 46 and an exhaust opening 18 at a second end 33of the inner cavity 46. An outer cavity 38 is defined between the outerhousing 12 and the inner housing 14. The material for dispensing ispreferably retained within the outer cavity 38. Additionally, a spacer37 may be provided to maintain proper spacing between the inner housing14 and the outer housing 12.

As shown in FIGS. 12 and 14-15, the outer cavity 38 has an upper cap 20at a top end 21 of the outer cavity 38, and a lower cap 24 at the lowerend 23 of the outer cavity 38. In one embodiment the upper cap 20 alsocomprises a cover over the entrance opening 31 to the inner cavity 46,however, the portion of the cover over the entrance opening 31 has aplurality of apertures 35 there through. Alternately, the cover over theentrance opening 31 may be a separate component from the upper cap 20for the outer cavity 38. Further, a funnel 28 may be provided at theentrance opening 31 to direct air into the entrance opening 31 of theinner housing 46. In one embodiment the funnel 28 is part of the uppercap 20, but in alternate embodiments it is a separate component.

In one embodiment the inner housing 14 has at least one aperture 62there through to provide fluid access between the outer cavity 38 andthe inner cavity 46 to allow material in the outer cavity 38 to betransferred to the inner cavity 46 and mixed with air to create an airand material mixture. In one embodiment two apertures 62 are provided inopposing sides of the inner housing 14. The apertures 62 may have anangled shape about the circumference of the inner housing 14, however,this shape may be varied. Preferably, the apertures 62 are providedtoward a bottom of the inner housing 14 as well as toward a bottom ofthe outer housing 12. The apertures 62 provide fluid access between theouter cavity 38 and the inner cavity 46. The apertures 62 operate as amixing device as previously described. Alternately, a separate mixingdevice may be utilized instead of the apertures.

A closure member 64 is provided adjacent the apertures 62 to selectivelyopen and close the apertures 62 in the inner housing 14. In oneembodiment the closure member 64 is provided in the inner cavity 46 ofthe inner housing 14. In a preferred embodiment the inner housing 14 istubular in shape, and a portion of the closure member 64 is similarlytubular or cylindrical in shape to match the shape of the inner wall ofthe inner housing 14. The closure member 64 preferably provides a valveor seal to seal the apertures when in the closed position.

As best shown in FIGS. 12 and 13, the closure member 64 may have amating member 63 to mate with a driver 65 for the closure member 64. Inone embodiment, the mating member 63 is a gear 63 that is provided atthe circumference of the closure member 64, and that mates with a motorgear 67 of the driver 65. In one embodiment the driver 65 is a servomotor 65. The servo motor 65 receives a signal from a controller (notshown) to cause the servo motor 65 to operate. The controller may beintegral to the driver 65 or it may be a separate component electricallyconnected to the driver 65. Typically, the signal provided to thecontroller will be a radio frequency signal from a remote controldevice. By controlling movement of the driver 65, the controllercontrols movement of the closure member 64 between a first positionwhere the apertures 62 are closed (see FIG. 14), and a second positionwhere the apertures 62 are open (see FIG. 15). The closure member 64preferably rotates between the first position and the second position asrotated by the driver 65. Supports 69 may be provided and, in oneembodiment may be connected to the lower cap 24, for supporting thedriver 65. The amount of material dispensed from the dispensing device10 can be controlled by the amount each aperture 62 is opened, as wellas the speed of the air acceleration device 32. Specifically, byincreasing the speed of the air acceleration device 32, which can becontrolled from the remote controller, the volume of air that is pulledthrough the inner cavity 46 can be drastically increased in volume andvelocity, and therefore the amount of material dispensed can bedrastically increased as well. The air/material mixture is projected adistance from the dispensing device 10, and the drone 11, by the airacceleration device 32. It is preferred to propel the air/materialmixture a distance from the drone 11 to minimize the air/materialmixture from being in the turbulent air of the drone's propellers, butto maximize the use of the subsequent downward air flow from the drone'spropellers that exists a distance from the drone 11. While not shown, apower source, such as a battery, will also be provided in the dispensingdevice 10 to provide power to the air acceleration device 32, the driver65 and the controller, if necessary.

In one embodiment a spacer 71 is provide between the exhaust opening 18to the inner cavity 46 and the air acceleration device 32. Further, anenclosure 73 may be provided around the air acceleration device 32 andthe driver 65, as shown in FIG. 12, to protect those components.

Several alternative embodiments and examples have been described andillustrated herein. A person of ordinary skill in the art wouldappreciate the features of the individual embodiments, and the possiblecombinations and variations of the components. A person of ordinaryskill in the art would further appreciate that any of the embodimentscould be provided in any combination with the other embodimentsdisclosed herein. Additionally, the terms “first,” “second,” “third,”and “fourth” as used herein are intended for illustrative purposes onlyand do not limit the embodiments in any way. Further, the term“plurality” as used herein indicates any number greater than one, eitherdisjunctively or conjunctively, as necessary, up to an infinite number.Additionally, the term “having” as used herein in both the disclosureand claims, is utilized in an open-ended manner.

It will be understood that the invention may be embodied in otherspecific forms without departing from the spirit or centralcharacteristics thereof. The present examples and embodiments,therefore, are to be considered in all respects as illustrative and notrestrictive, and the invention is not to be limited to the details givenherein. Accordingly, while the specific embodiments have beenillustrated and described, numerous modifications come to mind withoutsignificantly departing from the spirit of the invention and the scopeof protection is only limited by the scope of the accompanying Claims.

What is claimed is:
 1. A dispensing device for connection to a drone,comprising: an outer housing; an inner housing interior of the outerhousing, the inner housing having an inner cavity, the inner cavityhaving an entrance opening at a first end of the inner cavity and anexhaust opening at a second end of the inner cavity; an outer cavitybetween the outer housing and the inner housing, the outer cavityadapted to hold a material; an upper cap closing a first end of theouter cavity; a lower cap closing a second end of the outer cavity; anaperture in the inner housing proximal a bottom of the outer housing toprovide fluid access between the outer cavity and the inner cavity toallow material in the outer cavity to be transferred to the inner cavityand mixed with air to create an air and material mixture; a closuremember adjacent the aperture to open and close the aperture as desiredto dispense material from the outer cavity into the inner cavity formixing with air in the inner cavity; a controller for controllingmovement of the closure member between a first position where theaperture is closed, and a second position where the aperture is open;and, a fan adjacent the exhaust opening to the inner cavity toaccelerate the air and material mixture out of the dispensing device. 2.The dispensing device of claim 1, wherein the closure member comprises aseal inside the inner cavity, the seal rotating between the firstposition and the second position.
 3. The dispensing device of claim 1,further comprising a driver electrically connected to the controller,the driver moving the closure member between the first position and thesecond position.
 4. The dispensing device of claim 3, wherein the drivercomprises a gear connected to the closure member to rotate the closuremember between the first position and the second position.
 5. Thedispensing device of claim 1, wherein the controller comprises areceiver for receiving a radio frequency signal from a remote device. 6.The dispensing device of claim 1, further comprising a cover over theentrance opening of the inner housing, the cover having a plurality ofapertures there through.
 7. The dispensing device of claim 6, furthercomprising a funnel below a surface of the cover to direct air into theentrance opening of the inner housing.
 8. The dispensing device of claim1, further comprising a connector to secure the dispensing device to thedrone.
 9. A dispensing device for connection to a drone, comprising: anouter housing; an inner housing interior of the outer housing, the innerhousing having an inner cavity having an entrance opening at a first endof the inner cavity and an exhaust opening at a second end of the innercavity; an outer cavity between the outer housing and the inner housing,the outer cavity adapted to hold a material; an upper cap closing afirst end of the outer cavity; a lower cap closing a second end of theouter cavity; a fluid access opening to provide fluid access between theouter cavity and the inner cavity to allow material in the outer cavityto be transferred to the inner cavity and mixed with air to create anair and material mixture; and, an air accelerator adjacent the innercavity to accelerate the air and material mixture out of the dispensingdevice.
 10. The dispensing device of claim 9, wherein the airaccelerator is a fan adjacent the exhaust opening to the inner cavity.11. The dispensing device of claim 9, wherein the air accelerator is afan adjacent the entrance opening to the inner cavity.
 12. Thedispensing device of claim 9, further comprising a closure memberadjacent the fluid access opening to open and close the fluid accessopening as desired to dispense material from the outer cavity into theinner cavity for mixing with air in the inner cavity.
 13. The dispensingdevice of claim 12, wherein the closure member rotates between a closedposition and an open position.
 14. The dispensing device of claim 13,further comprising a motor having a gear to drive rotation of theclosure member.
 15. The dispensing device of claim 12, furthercomprising a controller for controlling movement of the closure memberto selectively open and close the fluid access opening.
 16. Thedispensing device of claim 13, wherein the controller comprises areceiver for receiving a radio frequency signal from a remote device.17. A dispensing device for connection to a drone, comprising: an outerhousing connected to a drone; an inner housing interior of the outerhousing, the inner housing having an inner cavity having an entranceopening at a first end of the inner cavity and an exhaust opening at asecond end of the inner cavity; an outer cavity between the outerhousing and the inner housing, the outer cavity adapted to hold amaterial; an upper cap closing a first end of the outer cavity; a lowercap closing a second end of the outer cavity; a fluid access opening toprovide fluid access between the outer cavity and the inner cavity toallow material in the outer cavity to be transferred to the innercavity; and, an air accelerator adjacent the inner cavity to acceleratean air and material mixture out of the dispensing device.
 18. Thedispensing device of claim 17, wherein the outer housing is connected tothe drone adjacent a side of the drone.
 19. The dispensing device ofclaim 17, wherein the outer housing is connected to the drone adjacent abottom of the drone.
 20. The dispensing device of claim 17, wherein theair accelerator accelerates the air and material mixture a distancebeyond a turbulence area of the drone.